This is where I think the question really lies. Being at a transitional point (as all points are) in the D&D fandom, there is still a lot of consternation over everything from evil orcs to inherent alignments to chainmail bikinis to Eurocentric folklore and myth. But I am not sure a + in the thread title is the right tool, because it is a cudgel that swings both ways.I think that's a bit of a crowbar of separation between "reasonable debate" and "actually you're wrong and you and your players are too sensitive"
Consider a debate on alignment as an inherent aspect of intelligent creatures. Formerly, this wouldn't be particularly controversial, and now is almost certain to result in mod action and potential thread closing. Regardless of the side of the debate the original poster might be on, does the inclusion of a + in the thread title suddenly mean it's going to be all roses and reasoned debate. No, it means, simply, "don't disagree with me." And at that point, why are you posting a discussion thread on a public forum unless what you really want is validation?
I am of course happy to follow the rules of the board, but I don't think + threads automatically or necessarily provide for a better environment for discussion. The A Game thing makes more sense but should be a mod note, not something OP calls for.